The China hopper dryers offer an effective and low-cost method for plastic material drying. Hot air is used to dry wet materials due to moisture absorption during packaging, transportation, and recycling. They can be directly mounted on the molding machine for quick drying and space saving. For this series, hot air blows eventually from bottom to the top (both THD-800 and THD-1000 have down-blowing air pipe and accessible door for easy material clearance) of the hopper with capacity ranging from 12kg to 1000kg. All models can be supplied with optional 24 hours auto start/stop timer.